Salamanca, Spain, 1936. In the early days of the military rebellion that began the Spanish Civil War (1936-39), writer Miguel de Unamuno supports the uprising in the hope that the prevailing political chaos will end. But when the confrontation becomes bloody, Unamuno must question his initial position.
| Directing | Alejandro Amenábar | Director |
| Production | Gabriel Arias-Salgado | Executive Producer |
| Production | Guillem Vidal-Folch | Executive Producer |
| Production | Simón de Santiago | Executive Producer |
| Production | Hugo Sigman | Producer |
| Editing | Carolina Martínez Urbina | Editor |
| Art | Ángela Nahum | Set Decoration |
| Art | Juan Pedro de Gaspar | Production Design |
| Production | Alejandro Amenábar | Producer |
| Production | Domingo Corral | Producer |
| Production | Fernando Bovaira | Producer |
| Writing | Alejandro Hernández | Screenplay |
| Camera | Álex Catalán | Director of Photography |
| Sound | Alejandro Amenábar | Original Music Composer |
| Costume & Make-Up | Sonia Grande | Costume Designer |
| Writing | Alejandro Amenábar | Screenplay |
| Production | Yolanda Serrano | Casting |
| Production | Eva Leira | Casting |
| Directing | Fernando Sánchez-Izquierdo | Assistant Director |
| Sound | Gabriel Gutiérrez | Sound Designer |
| Costume & Make-Up | Belén López-Puigcerver | Hair Designer |
| Costume & Make-Up | Ana López-Puigcerver | Makeup Designer |
| Costume & Make-Up | Nacho Díaz | Makeup Effects Designer |
| Directing | Glòria Blanes | Script Supervisor |
| Production | Carla Pérez de Albéniz | Production Director |
| Visual Effects | Juanma Nogales | Visual Effects Supervisor |
| Directing | Mercè Coll | Second Assistant Director |
| Directing | Eduardo Huete | Second Assistant Director |
| Directing | Guillem Manzanares | Third Assistant Director |
| Camera | Teresa Isasi | Still Photographer |
| Lighting | Miguel Ángel Cárdenas | Gaffer |
| Sound | Aitor Berenguer | Sound Recordist |
| Production | Pablo Alfaro | General Manager |
| Production | Belén Sánchez Peinado | Production Manager |
| Crew | César Solar | Stunt Coordinator |
| Art | Carmela García | Property Master |
| Sound | Gadou Naudin | Foley Artist |
| Sound | Lucio Godoy | Music Producer |
| Visual Effects | Raúl Romanillos | Special Effects Supervisor |
| Costume & Make-Up | Ainhoa Garrido | Prosthetic Supervisor |
| Crew | Isabel Salanueva | Post-Production Manager |
| Sound | Iñaki Sánchez-Elvira | Dialogue Editor |
| Art | Natalia Montes | Main Title Designer |
| Camera | Jesús Santa | Key Grip |
| Sound | Digba Kurpjel | Foley Artist |
